Union boss: Friendly fire possibility in shooting

The head of the union for border guards says the shooting of two U.S. Border Patrol agents near the Arizona-Mexico border may have been a case of friendly fire.

National Border Patrol Council president George McCubbin said Friday that he has learned new details that make him believe friendly fire could have played a part in the shooting. He declined to elaborate.

Two law enforcement officials also told The Associated Press that the FBI is investigating the possibility that the fatal shooting of 30-year-old Agent Nicholas Ivie and the wounding of another agent early Tuesday morning five miles from the border was a case of friendly fire.

The probe is examining whether the two agents exchanged gunfire Tuesday in the mistaken belief that each was being fired on by a hostile gunman.